Auxiliary equipment for electric-discharge lamps shall be enclosed in noncombustible cases and treated as sources of heat. Cord Requirements. The general rule is that when a defined term is used in two or more articles, the definition of that term should be included in Art. The terminals of an electric- discharge lamp shall be considered as energized where any lamp terminal is connected to a circuit of over 300 volts. Bundling multiple service disconnect switches inside one enclosure makes it impossible to comply with NFPA 70E Standards for Electrical Safety in the Workplace when it comes to safe When doing final inspections after the fixtures have been installed, please take a minute to look around. The equipment label contains important information such as voltage ratings, short circuit current ratings and other information critical for proper installation of electrical equipment. Article 410 is another example of an article in Chapter 4 of the NEC that often doesnt get a lot of emphasis from multi-trade inspectors. The term luminaires is recommended by the International Electrotechnical Commission. Luminaires, portable luminaires, lamphold ers, and lamps shall have no live parts normally exposed to contact. Another requirement is that track fittings are not to be equipped with general purpose receptacles, which would make them more like a branch circuit. Recessed lighting is an item I emphasize as one of the most important items for inspections. The minimum clearance between luminaires installed in clothes closets and the nearest point of a closet stor age space shall be as follows: 300 mm (12 in.) from lamp terminals shall not be required to be grounded. Thermal Protection Fluorescent Luminaires. Twisted or Cabled. Since the closet doors are generally closed, if the fixture is left on and overheats items in the closet, the resulting fire could go unnoticed for quite some time. Exposure to Damage. Luminaires installed in wet or damp locations shall be installed such that water cannot enter or accumulate in wiring compartments, lampholders, or other electrical parts. Luminaires installed on dc circuits shall be equipped with auxiliary equipment and resistors designed for dc operation. Many of the items have been created directly as a result of disaster conditions through history. from the sides and back of the closet Making this call once or twice, pretty well solved the problem in our area. Closet Storage Space. Individual showcases, other than fixed, shall be permitted to be connected by flexible cord to permanently installed receptacles, and groups of not more than six such showcases shall be permitted to be coupled together by flexible cord and separable locking-type connec tors with one of the group connected by flexible cord to a permanently installed receptacle. WebNEC Article 410 contains requirements for installing recessed lighting fixtures which of the following contain ballasts that provide high voltage across the lamp's electrodes at startup, causing then to emit electrons? Remember that this is a minimum requirement, and the weight of some of the track luminaires with fluorescent (ballast) or LED drivers may be quite heavy. Most of these code requirements focus on protecting combustible building materials from temperature greater than 90C (194F). Raceway Fittings. Luminaires designed for end-to-end connection to form a continuous assembly, or luminaires connected together by recognized wiring methods, shall be permitted to contain the conductors of a 2-wire branch circuit, or one multiwire branch circuit, supplying the connec ted luminaires and shall not be required to be listed as a race way. Busways. Choose topics from a full list of courses covering electrical topics that cover what you need to know from the NEC and other electrical codes and standards. The main goal of Part VI is to ensure that the wiring on or within luminaires is properly protected and supported. The means for providing illumination has gone through numerous changes over the centuries, from oil lamps to incandescent bulbs, to fluorescent tubes and LEDs. on either side of the rod on a plane horizontal to the floor extending the entire length of the rod. Incandescent lumin aires shall have thermal protection and shall be identified as thermally protected. 410.14 Luminaires in Show Windows. They shall be securely fastened to the track, shall maintain polarization and connections to the equipment grounding conductor, and shall be designed to be suspended directly from the track. Support of Exposed Cable for PV Systems: Requirements and Recommendations, Risk-y Business: The Time is Now to Quit Rolling the Dice on Electrical Safety, Pocket Devices Save Electricians, Engineers Lives, Selecting and Maintaining Arc Flash Workwear, Basic three-phase power measurements explained, Electricians Adapt to Increased Growth in Lighting Technologies. A bushing or the equivalent shall be provided where flexible cord enters the base or stem of a porta ble luminaire. All luminaires installed in wet locations shall be marked, Suitable for Wet Locations. All luminaires installed in damp locations shall be marked Suitable for Wet Locations or Suitable for Damp Locations.. Often we find shelves that hold cardboard boxes or garments that are easily ignited if in contact with a heat source. I will not cover each of these here, please review them on your own so that you will be aware of what is in this part of the code. Incandescent luminaires with open or partially enclosed lamps and pendant luminaires or lampholders shall not be permitted. Electrical Rating. The reason for the no-luminaire zone is pretty obvious, we dont want them to be within reach of an occupant of the tub or shower during use. 410.90 Screw Shell Type. Not if you provide a means of disconnecting such that the illuminated area will not be left in total darkness [410.130(G)(1) Ex 5]. A recessed luminaire that is identified for contact with insulation, Type IC, shall be permitted to be in contact with combustible materials at recessed parts, points of support, and portions passing through or finishing off the opening in the building structure. Article 411 addresses lighting systems operating at 30V or less. 3]. Several codes regulate the use of artificial lighting. Menu Close Framing members of suspended ceil ing systems used to support luminaires shall be securely fastened to each other and shall be securely attached to the building structure at appropriate intervals. Separately mounted ballasts, trans formers, LED drivers, or power supplies that are listed for direct connection to a wiring system shall not be required to be additionally enclosed. 410.59 Cord-Connected Showcases. 410.84 Cord Bushings. Portable luminaires shall be wired with flexible cord recognized by 400.4 and an attachment plug of the polar ized or grounding type. Luminaires identified for through-wiring as permitted by 410.21 [410.64(B)]. The requirements they provide are mostly mechanical in nature. ), or more than 300 mm (12 in.) The volume bounded by the sides and back closet walls and planes extending from the closet floor vertically to a height of 1.8 m (6 ft) or to the highest clothes-hanging rod and parallel to the walls at a horizontal distance of 600 mm (24 in.) Listing. Part V reviews the grounding requirements and basically states that if a luminaire or lighting equipment has metal parts, it shall be grounded. 150 mm (6 in.) Where raceway risers or cable is not installed within the pole, a threaded fitting or nipple shall be brazed, welded, or attached to the pole opposite the handhole for the supply connection. Listed clips identified for use with the type of ceiling framing member(s) and lumin aire(s) shall also be permitted. Article 110 of the National Electrical Code (NEC) covers the general requirements for the examination and approval, installation and use, access to, and spaces about electrical equipment. Please take time to read the scope of this article in 410.1. General. 110.2]. Part XII. Since most poles are metallic, you absolutely have to make this inspection to insure they are grounded. If its external to the luminaire, it must be a single device located in sight from the luminaire. This may create inspection issues, as Ive seen these cord- and plug-connected and hung in various ways that I didnt consider permanent. Metal or Nonmetallic Poles Supporting Luminaires. Article 411 addresses lighting systems operating at 30V or less. Most NEC requirements for lighting equipment are found in Articles 410 (Luminaires), 411 (Low Voltage Lighting), and 600 (Signs), all of which are within the responsibility of CMP 18. Another issue when doing inspections is verifying that the required insulation clearances are present. 2: No handhole shall be required in a pole 6.0 m (20 ft) or less in height abovegrade that is provided with a hinged base. All rights reserved. In 410.16, Clearance and Installation, the requirements are covered depending on the type of luminaire. The last thing we want is to have a heat source that may ignite some material within the ceiling and cause an attic fire. Components of lighting track systems of different voltages shall not be inter changeable. 1: See 225.26 for restrictions for support of overhead conductors. Lumin aires with exposed metal parts shall be provided with a means for connecting an equipment grounding conductor for such luminaires. Excess wiring shall be avoided. First, lets make the distinction between Articles 410 and 411 of the 2011 NEC. The installation shall comply with 410.59(A) through (E). One note Id like to add regarding these inspections. The ballast of a fluorescent luminaire installed indoors shall have integral thermal protec tion. Type IC fixtures are designed to be installed in such a way that they may have insulation directly in contact with them. In other words, the lamp is the disconnect. of a ballast, LED driver, power supply, or transformer shall have an insulation temperature rating not lower than 90C (194F), unless supplying a luminaire marked as suitable for a different insulation temperature. This becomes a challenge because insulation has the tendency to go everywhere if it is blown in; or if it is batt insulation, it may eventually fall onto a fixture. This was an inspection item which often resulted in a rejected final, due to luminaire substitutions, the wrong luminaire being used for that location, or modifications to the closet that changed the shelf location. Cord Requirements. Temperature. Instant-start lamps contain a? 410.52 Conductor Insulation. WebSpecial Provisions for Electric-Discharge Lighting Systems of 1000 Volts or Less, Equipment Not Integral with Luminaire (Fixture), XIV. Specify and install only equipment that conforms to these requirements. Where supplied by the ungrounded conductors of a circuit, the switching device of lampholders of the switched type shall simultaneously disconnect both conductors of the circuit. D9 Feeder Ampacity Determination for Generator Field Control, Example No. However, the requirements within this article are important to know and enforce. Where a luminaire is recessed in fire-resistant material in a building of fire-resistant construction, a temperature higher than 90C (194F) but not higher than 150C (302F) shall be considered acceptable if the luminaire is plainly marked for that service. 410.46 Equipment Grounding Conductor Attachment. Luminaires shall be wired with conductors having insulation suitable for the environmental conditions, current, voltage, and temperature to which the conductors will be subjected. D9 Feeder Ampacity Determination for Generator Field Control, Example No. Webnec article 410 contains requirements for installing Outlet boxes or fittings installed as required by 314.23 and complying with the provisions of 314.27 (A) (1) and 314.27 (A) (2) shall be permitted to support luminaires. Exception No. Suspended Ceilings. Lamps shall not be located where normally exposed to physical damage. 410.70 Combustible Shades and Enclosures. The disconnecting means must be accessible to qualified persons. for recessed fluorescent luminaires. There are issues related to combustibles due to the heat that is generated by traditional lighting methods. Exception No. Recessed lighting fixtures. Outlet Boxes. You may need to comply with more stringent requirements for lights than those contained in Article 410. Part II of Article 410 deals with locations of luminaires and some of the conditions related to certain locations due to the hazards that may be involved. Unless an individual switch is provided for each luminaire, lampholders shall be located at least 2.5 m (8 ft) above the floor or shall be located or guarded so that the lamps cannot be readily removed or damaged. Branch-circuit conductors that have an insulation suitable for the temperature encountered shall be permitted to terminate in the luminaire. constant wattage autotransformer Informational Note No. Electric-discharge and LED luminaires surface mounted over concealed outlet, pull, or junction boxes and designed not to be supported solely by the outlet box shall be provided with suitable openings in the back of the luminaire to provide access to the wiring in the box. 410.2 Definition. A luminaire assembly equipped with a strain reliefand canopy shall be permitted to use a cord connectionbetween the luminaire assembly and the canopy. WebCode Change Summary: New code sections covering horticulture lighting equipment. Unless identified for supports at greater intervals, a single section 1.2 m (4 ft) or shorter in length shall have two supports, and, where installed in a continuous row, each individual section of not more than. Cord Requirements. One important requirement to note is that a fixture can be supported from an outlet box if the outlet box is required by 314.23 and complies with 314.27 (A) and 314.27 (B). No unnecessary splices or taps shall be made within or on a luminaire.Informational Note: For approved means of making connec tions, see 110.14. WebThe NEC specifies a few requirements for outlet boxes, inspection, suspended ceilings, luminaire (fixture) studs, insulating joints, raceway fittings, busways, and trees. Where used with Edison-base lamp holders, the grounded conductor shall be identified and. The exception to the rule logically goes in the section that provides the rule. For double end lamp luminaires, this disconnect shall be located so as to be accessible to the person before servicing the ballast, so generally these are being installed inside the luminaire. Dont let this Articles length and degree of detail throw you. In a completed installa tion, each outlet box shall be provided with a cover unless covered by means of a luminaire canopy, lampholder, recepta cle, or similar device. Combustible Material. Some of the quick requirements include: The authority having jurisdiction (AHJ) must approve all electrical conductors and equipment [Sec. Most NEC requirements for lighting equipment are found in Articles 410 (Luminaires), 411 (Low Voltage Lighting), and 600 (Signs), all of which are within the responsibility of CMP 18. Coves shall have adequate space and shall be located so that lamps and equipment can be properly installed and maintained. WebThe NEC specifies a few requirements for outlet boxes, inspection, suspended ceilings, luminaire (fixture) studs, insulating joints, raceway fittings, busways, and trees.
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nec article 410 contains requirements for installing